Traction-wheel driving means.



R. KOILE.

TRAQHON WHEEL DRIVING MEANS.

APPLICATION mzo APR-19.19%

1,292,954. Patented Jan. 28, 1919.

IN V EN TOR.

.Roas Kai 2a,

UNITED STATES PATENT Specification of Letters Patent.

Patented Jan. 28, 1919,

Application filed April 19, 1918. Serial No. 229,525.

To all whom it may concern I Be it known that 1, Ross KOILE, a citizenof the United States of America, and a resident of Brandon, Buchanan.county, Iowa, have invented certain new and useful Improvements inTraction-"Wheel Driving Means, of which the following is aspecification.

My invention relates to improvements in traction-wheel driving means,and the object of my improvement is to supply for any motor-vehicleusing tractiomwheels, means for positivel driving same, which shall bepowerful, e ective, keep out dust, and distribute evenly the tractiveeffort on the moving parts. I i

This object I have accomplished by the mechanism which is hereinafterdescribed and claimed, and which is illustrated in the accompanyingdrawings, in which Figure 1 is an axial vertical transverse section of atraction-wheel equipped with myimproved, driving means; Fig. 2 1s afront elevation of theouter set of coacting gearing, and Fig. 3 is asection of the device, showing the inner set of coacting gearing, andtaken on the broken line 33 of said. Fig. 1.

Similar numerals of referencedenote corresponding parts throughout theseveral views. 7

The numeral 1 denotes a rotatable axle, which may be one of an alinedpair con.- nected by differential-gearing (not shown), and rotatablymounted in a fixed framehousin 2.

The ousing 2 has an integral disk-shaped web3 provided with anoutwardly-directed concentric flange with internal-gear teeth. 4.

The numeral 11 denotes a casting to re ceive shafts, which is removablyand rota tably mounted on said housing 2. The outer part 30 of thecasting is used as a triform gear-case to receive the threeequldlstantly spaced gears 22, 23 and 24, of the same size and number ofteeth, mounted on driven shafts 5, 6 and 7 respectively, the latterseated rotatably in transverse orifices in said casting and having theirrear ends extending therebeyond and having like gears 8, 9 and 10 fixedon their rear'ends. The rear part 14: of the casting is of disk form andclosely surrounded b the rim of the disk 3, to keep out dust. hegear-casing part,30 is covered by a removable facelate 25, secured bymachine-screws 26. he gearwheels 22, 23 and 24 all mesh with the teethtatable axle, a fixed housi of a central pinion 21. fixed on the outerend of the axle 1 in said casing 30. The other gear-wheels 8, 9 and 10all mesh with the internal-gear. teeth 4 on said fixed disk 3.

Within the casting 11 are the bearing-'0 nings 17 and 19 to receiveanti-friction to lots '18 and 20 respectively for the axle 1, while insaid casting are also bearing-o enings 12 and 15 to receiveanti-friction ro lers 13 and 16 respectively for the driven shafts 5, 6and 7. I

On the casting 11 are fixed radial grooved arms 27, in whoselongitudinal grooves are fixedthe inner ends of the flat spokes 28,whose outer ends are riveted to face of the traction-wheel rim 29.

Since the casting 11 is rotatable on said housing 2, when'the axle 1 ispositively to tated, its pinion 21 rotates thegear-wheel's 22, 23 and24, with the driven shafts 5, 6 and 7, also the rear set of gear-wheels8, 9 and 10, the internal-gear 4 serving as a fixed abutment whereby thegear-wheels 8, 9 and ,10 serve to rotate the casting 11 and with it saidtraction-wheel 29, and said mechanism is reversible, which fits it foruse in any motor-vehicle such as a tractor or the like.

The two sets of triplicate gears serve to distribute the tractive efforton the bearings, axlefandr shafts, which prevents any unbalanced"tlondition in said parts, and obviates; excessive wear in the parts, andprolfin fsathe life of said structures under the meny and varyingstrains of use, such as are incident to a tractor working over rough oruneven surfaces The parts of the device are simple, easily assembled ordisassembled, and inexpensive to make and use. The use of the face-plate25, and the disk-flange or rim 3 closely surrounding the rear circularpart 14 of the casting 11, prevents entry of dust to the differentbearings, which a traction-wheel, of driving means therefor,

com using a roor said axle including aninternal-gear xedthereon, aboxingrotata'bly mounted on Sci housin having therein three equidistanty space bearin -orifices therein equidistant from said axle,driven'shafts rotatably mounted in.

the inner said bearing-orifices, said boxing including a tri-formed gearcasing like gear-wheels fixed. on ends of said driven-shafts and in meshwith said internal-gear, a inion fixed on said axle like gear-wheels xedon the opposite ends of said driven-shafts and in mesh with said pinionwithin said gear casing, said traction-wheel being fixedlyconcentrically mounted on said boxing.

2. The combination with a trzu'tion-n'heql, of driving means therefor,comprising a rotatable axle, a fixed housing for said axle including afixed concentric disk having an outwardl 'directed rim provided withinter nal-gear teeth spaced from its outer edge, a boxing rotatablymounted on said housing and provided with a plurality of equidistantlyspaced bearing-orifices containing anti-friction rollers. driven-shaftsrotatably mounted on said anti-friction rollers to pro ject oppositeltherefrom. like gear-wheels fixed on ends of said driven-shafts and inmesh with said internal-gear teeth, a pinion fixed on the outer end ofsaid axle, like gear wheels fixed on the opposite ends of saiddriven-shafts and in mesh with said pinion, the outer end of said boxingbeing formed into a gear-ease for said pinion and its said internieshedgear-wheels, a face-plate removably secured over said gear-case, theopposite end of said boxing being formed into a disk concentric with theaxle and closely fitted within the projecting part of the rim outside ofsaid internal-gear teeth to provide. a gear-case for the gears meshingwith the said teeth. and said traction-wheel being fixedly mountedconcen rically upon said boxing.

3. The combination with a traction-wheel, of driving means therefor.comprising a 1'0- ta1ableaxle,a fixed housing for said axle including anintegral com-entric. disk thereon having an annular lateral rim havingin ternal-gear teeth and a part projecting beyond the gear teeth. aboxing rotatably mounted on the spindle of said axle and having on oneend an integral annular flange positioned within and in close movablefit with the said projecting part of said annular rinn said boxinghaving on its opposite end an integral triformcd flange provided with alaterally directed rim. a face-plate remorabl mounted on thelast-mentioned rim to provide a gear-case between it and the boxing,said boxing having t hree conccntrieequally spaced longitudinal shat'tbearings,a pinion fixed on the outer end of the axle-spindle within saidgear-ease. dri ren-shafts rotatablr mounted in said shaft-bearings toproject from opposite ends thereof, like gear-wheels fixed on saidshafts within said geaiwrase and meshed with said axle-pinion, and likegearwheels fixed on the opposite ends of said shafts and in mesh withthe said internalgear teeth, said traction-wheel being fixedlyconcentricallv mounted on said boxing.

Signed at 'atcrloo, Iowa, this 3rd day of April, 1918.

ROSS KOIL'E.

